.page-faq {
  --faq-radius: 16px;
  --faq-hair: 1px solid var(--grid);
}

.page-faq [id] {
  scroll-margin-top: calc(var(--bar-h) + 20px);
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: clamp(30px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: .06em;
  line-height: 1.18;
  color: var(--white);
  max-width: 13em;
}

.page-faq h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.3;
  color: var(--white);
}

.page-faq .faq-p {
  margin: 0 0 14px;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- hero ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(24px, 5vw, 56px) 0 clamp(36px, 6vw, 72px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -8% -14% auto -8%;
  height: 440px;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58% 100% at 16% 0%, rgba(46, 242, 200, .15), transparent 70%),
    radial-gradient(52% 92% at 96% 8%, rgba(46, 125, 255, .20), transparent 72%);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  margin-top: clamp(20px, 4vw, 40px);
}

.page-faq .faq-hero__sum {
  margin: 0 0 26px;
  max-width: 34em;
  color: var(--steel);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__panel {
  position: relative;
  align-self: start;
  padding: 22px 20px;
  border: var(--faq-hair);
  border-radius: var(--faq-radius);
  background: linear-gradient(165deg, var(--ink-2), var(--ink-3) 58%, var(--ink-2));
  overflow: hidden;
}

.page-faq .faq-hero__panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--aurora), var(--glacier) 58%, transparent);
}

.page-faq .quick-path {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .quick-path__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(30, 53, 80, .95);
}

.page-faq .quick-path__item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .quick-path__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--aurora);
  border: 1px solid rgba(46, 242, 200, .32);
  border-radius: 999px;
  padding: 3px 9px;
  white-space: nowrap;
}

.page-faq .quick-path__v {
  color: var(--steel);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- sections ---------- */

.page-faq .faq-sec {
  position: relative;
  padding: clamp(38px, 6.5vw, 82px) 0;
}

.page-faq .faq-sec--line {
  border-top: var(--faq-hair);
}

/* ---------- steps ---------- */

.page-faq .faq-steps__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
}

.page-faq .faq-steps__fig {
  margin: 22px 0 0;
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .step {
  position: relative;
  border: var(--faq-hair);
  border-radius: var(--faq-radius);
  background: linear-gradient(160deg, rgba(14, 26, 43, .92), rgba(7, 11, 18, .92));
  transition: border-color .25s ease, box-shadow .25s ease;
}

.page-faq .step:not(:last-child) {
  margin-bottom: 22px;
}

.page-faq .step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 34px;
  top: 100%;
  width: 2px;
  height: 22px;
  background-image: linear-gradient(to bottom, var(--grid) 55%, transparent 55%);
  background-size: 2px 8px;
  background-repeat: repeat-y;
}

.page-faq .step[open] {
  border-color: rgba(46, 242, 200, .38);
  box-shadow: 0 0 0 1px rgba(46, 242, 200, .12), 0 18px 40px -28px rgba(46, 242, 200, .45);
}

.page-faq .step__sum {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 18px;
  cursor: pointer;
  list-style: none;
}

.page-faq .step__sum::-webkit-details-marker {
  display: none;
}

.page-faq .step__no {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--steel);
  transition: color .25s ease;
}

.page-faq .step[open] .step__no {
  color: var(--aurora);
}

.page-faq .step__title {
  font-size: clamp(15px, 1.8vw, 17px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.page-faq .step__mark,
.page-faq .qa__mark {
  position: relative;
  width: 16px;
  height: 16px;
  flex: none;
}

.page-faq .step__mark::before,
.page-faq .step__mark::after,
.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--ice);
  border-radius: 2px;
}

.page-faq .step__mark::before,
.page-faq .qa__mark::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .step__mark::after,
.page-faq .qa__mark::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
  transition: transform .25s ease, opacity .25s ease;
}

.page-faq .step[open] .step__mark::after,
.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .qa[open] .qa__mark::before {
  background: var(--aurora);
}

.page-faq .step__body {
  padding: 2px 18px 20px;
  border-top: 1px solid rgba(30, 53, 80, .8);
  margin-top: 2px;
}

.page-faq .step__body p {
  margin: 14px 0 0;
  color: var(--steel);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- version ---------- */

.page-faq .faq-ver__card {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(22px, 4vw, 44px);
  border-radius: var(--radius);
  border: var(--faq-hair);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(46, 125, 255, .16), transparent 62%),
    linear-gradient(150deg, var(--ink-2), var(--ink));
}

.page-faq .faq-ver__badge {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px;
  border-radius: var(--faq-radius);
  border: var(--faq-hair);
  background: rgba(7, 11, 18, .62);
}

.page-faq .faq-ver__v {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(36px, 8vw, 62px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--white);
  text-shadow: 0 0 28px rgba(46, 242, 200, .38);
}

.page-faq .faq-ver__hint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-faq .ver-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .ver-list li {
  position: relative;
  padding-left: 18px;
  color: var(--steel);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .ver-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--aurora);
  box-shadow: 0 0 10px rgba(46, 242, 200, .55);
}

.page-faq .faq-ver__fig {
  margin: 20px 0 0;
  max-width: 320px;
}

/* ---------- faq list ---------- */

.page-faq .faq-q__head {
  max-width: 42em;
}

.page-faq .faq-list {
  margin-top: clamp(18px, 3vw, 30px);
  border-top: var(--faq-hair);
}

.page-faq .qa {
  border-bottom: var(--faq-hair);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
}

.page-faq .qa__q::-webkit-details-marker {
  display: none;
}

.page-faq .qa__cat {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ice);
  border: 1px solid rgba(143, 216, 255, .3);
  border-radius: 4px;
  padding: 2px 7px;
  white-space: nowrap;
}

.page-faq .qa[open] .qa__cat {
  color: var(--ink);
  background: var(--aurora);
  border-color: var(--aurora);
}

.page-faq .qa__t {
  font-size: clamp(15px, 1.8vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--white);
}

.page-faq .qa__a {
  padding: 0 4px 20px;
  color: var(--steel);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- prepare ---------- */

.page-faq .faq-prep__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
}

.page-faq .prep-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .prep-list__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  border: var(--faq-hair);
  border-radius: 12px;
  background: rgba(14, 26, 43, .58);
}

.page-faq .prep-list__n {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--aurora);
  padding-top: 2px;
}

.page-faq .prep-list__t {
  color: var(--steel);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .faq-contact {
  display: grid;
  gap: 6px;
  margin-bottom: 24px;
  padding: 18px 20px;
  border-left: 2px solid var(--signal);
  border-radius: 0 12px 12px 0;
  background: rgba(255, 122, 61, .07);
}

.page-faq .faq-contact__k {
  margin: 6px 0 0;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--steel);
}

.page-faq .faq-contact__v {
  margin: 0;
  font-size: clamp(14px, 1.7vw, 16px);
  color: var(--white);
  word-break: break-all;
}

.page-faq .faq-contact__n {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--steel);
}

.page-faq .faq-prep__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- responsive ---------- */

@media (min-width: 700px) {
  .page-faq .qa__q {
    padding: 20px 6px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-steps__aside {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-faq .faq-ver__card {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-faq .faq-prep__grid {
    grid-template-columns: minmax(0, 290px) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .75fr);
    align-items: start;
  }
}

@media (max-width: 560px) {
  .page-faq .qa__q {
    grid-template-columns: 1fr auto;
    gap: 8px 12px;
  }

  .page-faq .qa__cat {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .page-faq .step__sum {
    gap: 10px;
    padding: 16px 14px;
  }

  .page-faq .step__body {
    padding: 2px 14px 18px;
  }

  .page-faq .step:not(:last-child)::before {
    left: 28px;
  }

  .page-faq .faq-ver__badge {
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step,
  .page-faq .step__no,
  .page-faq .step__mark::after,
  .page-faq .qa__mark::after {
    transition: none;
  }
}
<<<END>>>